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O/T Need help with math calculation

Discussion in 'Uncategorized Threads' started by yvonne, Aug 19, 2008.

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  1. yvonne

    yvonne Banned User Banned

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    How much loam will I need for a spot 20' x 10' x 1' deep? Thanks!
     
  2. pendennis

    pendennis Well-Known Member

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    Approx. 7.5 yds. (200 cu ft / 27 cu ft(per yd)

    Dennis
     
  3. stokinpls

    stokinpls Well-Known Member

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    10' X 20' X 1' + 200 cubic '

    40 lb bag is around .8 cubic feet.

    200 / .8 = 250.

    Buy extra if it is wet.

    Good luck.
     
  4. John Thompson

    John Thompson TS Member

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    Math.
    9 cu. ft. = 1 cu. yd.
    20ft.X 10 ft. X 1 ft. = 200 cu. ft.
    200cu. ft. /9 cu. ft. = 2.222 cu. yd.s
     
  5. Little Dog

    Little Dog TS Member

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    John was BIGDON your math teacher? There are 9 square feet in a square yard and 27 cubic feet in a cubic yard. I noticed you had a little problem dividing 200 by 9 too: it's 22.222, not 2.2222- not that it really matters since neither number is meaningful. I'll bet you shoot much better than you divide.
     
  6. wolfram

    wolfram Well-Known Member

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    Both Pendennis and Stokinpls are correct. Get 7.5 to 8 Yd3 (200 to 215 Ft3)
     
  7. tcr1146

    tcr1146 Well-Known Member

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    Don't you just love it when the "mathematicians" come on here and look silly!? Tom Rhoads
     
  8. AJ100

    AJ100 TS Member

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    That sounds like a lot of work.

    Here's a math question for ya. How much does it cost to pay SOMEONE ELSE to spread that much lome?

    Hey wolfram, was that 7.5 or 8?

    AJ100
     
  9. yvonne

    yvonne Banned User Banned

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    HaHa! I'm going to spread it myself and put in a new tree/shrub garden. Just needed to know how much to have delivered. One time I had 20 yards of bark mulch delivered and learned never to do THAT again!! Thanks to all the math geeks! ;)
     
  10. Little Dog

    Little Dog TS Member

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    AJ, what's lome?
     
  11. phirel

    phirel TS Member

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    yvonne- You now have the correct (rounded) number of cubic yards of dirt you need. But, there is another problem. When the dirt is loaded onto a truck it is roughly measured by the scoop of a front end loader. You can order and pay for 7.5 yards but that is not what might get delivered. Most loads are a little long, but some are short.

    Also, it the dirt is dumped on your yard and you have to wheel barrel it to the bed, about one half yard will be lost.

    We often make the mistake of calculating exactly what we need and ignore the units by the retailer to deliver the product. Dirt is delivered by the scoop.

    Another example- If you want to lay carpet in a room that is 10' X 14', it will require purchasing 18.7 yards of carpet to cover a room that only has 15.6 square yards of surface.

    Pat Ireland
     
  12. SARGE75X

    SARGE75X Member

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    Well we did so well on the first question, hows this( it's in there, just have to bring it back to the surface)

    Solve for y

    -6y+5(-3y-9)= 9+8(-6-y)
     
  13. pendennis

    pendennis Well-Known Member

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    Sarge,

    Y=.4615

    Dennis
     
  14. wolfram

    wolfram Well-Known Member

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    y=-6/13 or -0.4615, poorly written equation also not relevant to the question.

    Ten points to AJ for catching the spin on 7.5 vs 8.
     
  15. SARGE75X

    SARGE75X Member

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    poorly written humm

    taken right off Indiana University math department entrance exam. I would imagine Dr I Hozo would like to know why you think so.
     
  16. wolfram

    wolfram Well-Known Member

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    Poorly written because the negative signage is meaningless, just flip the equation around and they go away, the problem can then be solved by inspection.
     
  17. SARGE75X

    SARGE75X Member

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    Yes they cancel each other out and thats the whole idea. Maybe i should have posted double variables?
     
  18. wolfram

    wolfram Well-Known Member

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    Two variables would have been more entertaining especially is y was the mean population of #7.5 in each box of x brand shells. Of course you would need other equations to get to a numerical answer.
     
  19. SARGE75X

    SARGE75X Member

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    Well seeing I'm a 51yo Nursing student maybe we should switch gears to dosing calulations. I hear it's alot of fun
     
  20. wolfram

    wolfram Well-Known Member

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    Wow ... nursing. That's a demanding profession. Not something I could handle, too much of the human element. You will probably be able to get work anywhere you want though, best of luck to you.
     
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